Bash script to automatically reconnect VPN (as long as the parent connection is active)

autovpn

#!/bin/bash
### BEGIN INIT INFO
# Provides:          autovpn
# Required-Start:    $local_fs $network
# Required-Stop:     $local_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: autovpn
# Description:       Automatically reconnects VPN if disconnected
### END INIT INFO

### USAGE
# Bash script to automatically reconnect VPN (as long as the parent connection is active)
# adapted from: http://www.bauer-power.net/2013/11/script-to-automatically-connect-and.html#.VP3SuoHF-n4 to fix the bug that prevented the machine from restarting
# Just place in /etc/init.d/autovpn with chmod +x and then `sudo update-rc.d autovpn defaults`
# if using Ubuntu Guest in VirtualBox and you need Shared Folders to work, rename to `zautovpn` and add it to startup via the 'Startup' app
### END USAGE

# While we're at Default run level (2), e.g. not rebooting
while [ "$(runlevel | awk '{ print $2 }')" -eq 2 ]
do
    VPNCON=$(nmcli con show uuid 844ccb1c-fb23-4962-b20c-fcff5cf53b65 | grep VPN.VPN-STATE | awk '{print $2}')
    if [[ $VPNCON != "5" ]]; then
        echo "Disconnected, trying to reconnect..."
        (sleep 1s && nmcli con up uuid 844ccb1c-fb23-4962-b20c-fcff5cf53b65)
    else
        echo "Already connected !"
    fi
    sleep 15
done

Edit the config to not prompt for a password every time:

sudo gedit /etc/NetworkManager/system-connections/PIA\ -\ US\ East

change password-flags=1 to password-flags=0

Add the following two lines:

[vpn-secrets]
password=THEPASSWORD-FROM-PIA

Get the UUID of the Ethernet and VPN network adapters

nmcli con show

Edit this GIST:

sudo edit /etc/init.d/autovpn
sudo chmod +x /etc/init.d/autovpn
sudo update-rc.d autovpn defaults